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RIPng Questions

July 19th, 2019 in ROUTE 300-101 Go to comments

Question 1

Explanation

The default timers of RIP and RIPng are the same. The meanings of these timers are described below:

Update: how often the router sends update. Default update timer is 30 seconds
Invalid (also called Expire): how much time must expire before a route becomes invalid since seeing a valid update; and place the route into holddown. Default invalid timer is 180 seconds
Holddown: if RIP receives an update with a hop count (metric) higher than the hop count recording in the routing table, RIP does not “believe in” that update. Default holddown timer is 180 seconds
Flush: how much time since the last valid update, until RIP deletes that route in its routing table. Default Flush timer is 240 seconds

RIPng_timer.jpg

Question 2

Question 3

Question 4

Question 5

Question 6

Explanation

This is how to disable split horizon processing for the IPv6 RIP routing process named digitaltut:

Router(config)# ipv6 router rip digitaltut
Router(config-rtr)#no split-horizon

Note: For RIP (IPv4), we have to disable/enable split horizon in interface mode. For example: Router(config-if)# ip split-horizon

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6/command/ipv6-cr-book/ipv6-s6.html

Question 7

Explanation

This is how to change the timers for RIPng:

R1(config)#ipv6 router rip digitaltut
R1(config-rtr)#timers 5 15 10 30 (5: Update period; 15: Route timeout period; 10: Route holddown period; 30: Route garbage collection period)

Note: For IPv4 RIP, we have to change the timers in “(config-router)#”.

Comments
  1. correct it
    September 24th, 2017

    Question 5

    RIPng Question. Cannot receive RIPng updates. Why?
    A. Firewall Port block UDP 520
    B. Firewall Port block TCP 520
    C. Firewall Port block UDP 521
    D. Firewall Port block TCP 521

    Correct answer is A.. most of the questions are wrong in this site.

  2. corrected
    September 25th, 2017

    C is correct for RIPng

  3. incorrect it
    October 12th, 2017
  4. Arturo
    November 14th, 2017

    Confirming the 539q dumps are valid.

  5. Sang
    November 21st, 2017

    Passed, if you go the exam study the 539q dumps.

  6. Raj7437
    November 22nd, 2017

    @sang : Is the 539 questions is from the digitaltut you are mentioning ??

  7. Kristofer
    November 28th, 2017

    Passed, if you go the exam study the 21q dumps.

  8. @correct it
    January 10th, 2018

    RIPng is a UDP-based protocol. Each router that uses RIPng has a
    routing process that sends and receives datagrams on UDP port number
    521, the RIPng port
    https://tools.ietf.org/html/rfc2080

    So the stated answer is the correct one, C. I guess you have no clue what you’re talking about when you say that “most of the question are wrong”…study my friend.

  9. Keenan
    September 21st, 2018

    Passed with the 806q dumps, all questions were from there.

  10. JDMV
    November 22nd, 2018

    @Keenan can you share the dumps please!

    calaca 2 1 2 @ gmail dot com

  11. Sorlags
    February 3rd, 2019

    @all, like say “incorrect it” for Q5

    RIP – UDP 520
    RIPng – UDP 521

    Question 5

    RIPng Question. Cannot receive RIPng updates. Why?
    A. Firewall Port block UDP 520
    B. Firewall Port block TCP 520
    C. Firewall Port block UDP 521
    D. Firewall Port block TCP 521

    Answer : C

  12. Abdu
    March 19th, 2019

    A network engineer is enabling RIPng on a new customer link Under which configuration mode is RIPng enabled?

    A. Global
    B. Router
    C. Interface
    D. IPv6

    Answer: C
    shouldn’t it be A, Global ?

  13. @Abdu
    April 21st, 2019

    Supposedly the question phrasing is giving us more context. The “network engineer is ENABLING RIPng on a new customer link”. So from that we’re supposed to gather that RIPng was already running for older customers and the global configuration for RIPng is in place. So all that would be left would be ENABLING RIPng on the interface for the new customer. So that would make the answer C. Interface, not A….Cisco you soooo crazy.

  14. Anonymous
    July 11th, 2019

    RIPng uses 521 UDP but rip version 1 & 2 uses 520 UDP port

  15. Jay Baral
    July 11th, 2019

    RIPng uses 521 UDP but rip version 1 & 2 uses 520 UDP port

  16. el recepo
    December 14th, 2019

    RIPng sends updates on UDP port 521 using the multicast group ff02::9.

  17. Anonymous
    January 1st, 2020

    UDP: Typically, RIPng uses UDP as its transport protocol. The well known UDP port for RIPng traffic is 521

  18. study
    January 20th, 2020

    @Abdu

    Actually you don’t even need to enable RIP in global mode, simply type in ipv6 RIP enable on any interface will create that process ID automatically. Same goes for OSPF and EIGRP

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